Reinforced concrete construction.



Eu. PATENTED JAN. 14, 1908.

P, N, GOMITOT.

REINFORCED CONCRETE CONSTRUCTION, APPLICATION FILED NOV. a, 1906.

UNITED STATES PATENT OFFICE.

FRANCOIS N. COMITOT, OF CHICAGO, ILLINOIS.

REINFORCED CONCRETE CO NSTRUG'IION.

Specification. of Letters Fatent.

Patented. Jan. 14, 1908.

Application filed November 3, 1906. Serial No. 341.945-

T 0 all whom it may concern:

Be it known that I, FRANooIs N. CoMrror, a citizen of the" United.States, residing at Chicago, in the county of Cook and-StateofIllinois, have invented a certain new and useful Improvement inReinforced Concrete Construction, of which the following is aspecification.

My invention relates to reinforced concrete construction and to meanswhereby concrete structures may be reinforced, and'the object 'of theinventionis to provide a bar which may become universal or typical sothat a bar of any given size and shape may be used under variousconditions of load and dimensions by merely varying the length of thebar.

I attain my ob ects In thev manner illustrated in the accompanyingdrawings in' Which: v

Figure 1 is a general side view ofa bar and anchor rods assembled. Fig.2 is a side view showing bars and rods in actual use.

' is a fragmentary pers ective view indicating the manner of assem lingthe main bar and the anchor rods. Fig. 4 is an enlarged transversesectional view taken on .line 4:, 4 Fig. 1.

4o Fi 5 is a fragmentary perspective analogous to ig. 3 but showing oneof the flange apertures open at the side.

Referring tothe drawings which form a part of this specification; themain bar 6 is provided-with tjwo fl nge's-Z centrally located etweentheto'pj-andi bottom of the said bar and formed thereon ythe usual rollingproc* ess. By .havin the flanges 7 central on the bar 6 the tie ro srest upon each'iether under said flange without projecting ,below thelower surfa e of said bar- The side surfaces of the bar 6 above andbelow the said flanges 7 also serve to hold the tie rods "in theirproper positions Whilethe concrete is being ut'in place. Atfrequentinterval's.in these anges are punched apieftures;8'.: .SaidaperK tures are designed to receive the anchor or tie rods, 9 1O, 11, 12.These rods may have ends 10*, $1.1; etc. upon them for further anchoringthem in the concrete if desired.

The method of using and assembling the parts is as follows: At thecentral portion of the bar orbeam 6 is laid the first rod 9. The mainportion ofthis rod lies below the flange 7 but the ends of the rodproject up through the first pair of apertures 8-. In other words therod for a considerable. ortion of its length lies below the flange 7 ut'at the end extends up through the flange so that the ex tremities of therod may'become embedded in the concrete above. In an analogous mannerthe next rod 10 is laid beneath the flange and beneath the'adjacentportion of the rod 9,- but itsextremities extend beyond the rod 9 andpass up through the apertures just beyond those through which the rod 9projects. Rod 11 is adjusted. to place in a similar manner, the centralportion lying beneath the central portions ofrods 9 and 10 and. theextremities passing 11 through the apertures just beyond those t roughwhich. As a result-When the the'rod 10 projects. bar 6 and thediiferentrods are assembled the effect is to produce a member having aseries of tie rods extending from it at various intervals so that whenthe concrete is poured around the assembled bar and rods the concreteholds the bar and rods together and is in turn reinfgrced by them. Ifthe ends of the ro d are turned over or hooked as indicated inFigs. land 2 there will be an additional strengthening and binding effect. At apointwhere two bars meet the bent ends of the reds may overlap eachother as shown in the middle portion of Fig. 2, thus also enhancingl thebmding effect. The advantage in this construction is that the bar 6 maybe kept in st' d'ard'sizes and be adapted to varioustie iifditions ofsize and load of the buildingby cutting the bars to roper length andemploying the roper num er of anchor 01 tie rods. 'It-is 0 vious thatthe flanges 7 may have apertures located close together which will havethe advantage of affording the designer of the building an opportunityits to locate the rods as near together or far.

8 in flanges-7 be laterally surrounded by Although it is desirable thatthe apertures metal it"is 'not1necessary that these apertures be. closedat n -sma; apeptu i'e which is ll) ing of. a bar having two flangescentrally plying underthe said flange and theirends V top of the barimpinging against the sides open a the side is indicated in Fig. 5. Withsuch construction the rods may beassembled by laying them in positionfrom the side without actually passingthe ends up through -j LettersPatent, is: 1; Means for reinforcing-concrete consistcated between thetop and bottom thereof on pposite sides and extending the entire engththereof,' each provided witha row of a ertures, and a row of rods oneach side of 15 t esaid bar having their central'portions projecting upthrough said a ertures the ortion of rods above and be ow the said angelie adjacent the sidesof the barp 2. Means for reinforcing concreteconsistin of a metal bar having flanges on opposite si es centrallyvlocated betwee'nthe top and bottom thereof and extending the entire jlen th thereof, having a ertures, therein; 2'5 an rods on each side ofsai bar having their central portions lying one upon the other be- .lowthe said flanges and thelrends projecting up throughthe said'aperturesand above the said bar; the portion of the rods below the of the latterand the arts above the bar forming tie rods 'adapte to be embeddedamona.

binding effect.

sis-sabove said flanges, the'portion of the rods below the topof the barimpingin against the sides of the latter the parts aiove the 'flan esforming tie rods 'ada ted to be embedded in the concrete, and endsor-crooks near the ends of said rods for increasing their 4. A-concreteconstruction consisting of a bar having longitudinal flangesonjopp'osite sides centrally ocated between the top and bottom thereofand extending the-entire length thereof with a'pertures therein, two

rows of rods having their central portions lying'below the flangesandtheir ends prothrough said apertures toform portion of the rods belowthe top of the bar impinginga ainst the sides of the latter andconcrete'inc osing the whole.

5." Means for reinforc in concrete consist in of a bar havingtwo angeson opposite si es centrally located between the top and bottom thereofand extending the entirelength thereof, each provided witha' row'ofapertures, and a-rowof rods oneach side-pf said bar 'havingtheir centralportions lying under the said flange and their-ends projecting upthrough-the a'ertures on an in cline and then bent paralle with the saidbar, the said upper ends overlapping each other the'portion of the'rodsbelowtheto of the bar impinge against the sides of the atter.

In witness whereof, I have hereunto subscribed my name in the presenceof two witnesses Francois N. ooMrTo'r;

Witnesses:

HOWARD M. Cox,

Q. J CHRISTOFFEL.

